In LEGO Fortnite Odyssey, the elusive Blast Cores are the explosive key to crafting powerful gear-but getting your hands on them means facing off against the deadly Blasters, crab-like creatures lurking in the sun-scorched Dry Valley and its treacherous caves. Ready your weapons and steel your nerves: these ticking time bombs won’t give up their cores without a fight, and mastering their hunt could be the difference between survival and defeat across Mobile, Nintendo, PC, PlayStation, and Xbox platforms.
Where to find blast cores in Lego Fortnite Odyssey
In LEGO Fortnite Odyssey, Blast Cores are essential crafting resources obtained exclusively by defeating Blasters, explosive spider-like creatures found primarily in the Dry Valley biome and its caves. These enemies resemble crabs with volcano-like spikes on their backs and explode when approached, so players should use ranged attacks and keep moving to avoid damage. The best time to farm Blast Cores is during the daytime in the Dry Valley, as nighttime spawns are dominated by wolves and skeletons, making Blasters rarer. Additionally, some Blasters can also be found in the Floating Islands (Lost Isles), though less frequently. Exploring caves in the Dry Valley offers concentrated spawn points, making them excellent locations for farming Blast Cores efficiently.
To get blast cores, you’ll need to take out these crab-like volcano creatures called blasters in the dry valley biome. There are lots of them in dry valley caves as well. These enemies will chase you down and blow up after they see you, so you’ll need to be very careful. We recommend used ranged weapons and kiting them to take them out.

You can find a ton of these in the dry valley biome itself, especially during the day. At night, most of the spawns will get taken up by wolves and skeletons, so day time is your best bet.
What uses blast cores in Lego Fortnite Odyssey
In LEGO Fortnite Odyssey, blast cores are essential crafting materials used primarily for building utility structures like the Metal Smelter and the Gem Cutter, which help process resources. They are also crucial for crafting powerful explosives such as the Thermal Detonator, a Star Wars-inspired grenade, which requires a Rebel Workbench to create. Additionally, blast cores can be applied to weapons to enhance their knockback effect and are used in crafting several stat-boosting charms, making them valuable for both combat and resource management.
You need blast cores for a few utility items, like the gem cutter and the metal smelter. Most notably, you can use them to make Thermal Detonators, a Star Wars-based item that effectively works like a powerful grenade. You’ll need a special crafting bench, the Rebel Workbench, to make these, though.

Want to know the best spots to hunt blast cores quickly in Lego Fortnite Odyssey
The best spots to quickly hunt Blast Cores in LEGO Fortnite Odyssey are the Dry Valley biome and its lava-filled caves, where Blasters-explosive crab-like creatures-spawn in high numbers, especially during the daytime when fewer other enemies appear. These caves, often small chambers with multiple spawn points, allow for efficient farming as Blasters respawn rapidly every 5 to 20 seconds, sometimes replaced by scorpions or spiders, providing a steady supply of Blast Cores. Using ranged weapons and kiting tactics helps safely defeat these volatile foes, making the Dry Valley caves the prime location for fast Blast Core collection across all platforms. Additionally, some players find caves in other biomes like Grasslands useful for earlier and safer farming, though Dry Valley remains the most reliable hotspot.
What are the top locations in Dry Valley for quick blast core farming
The top locations in Dry Valley for quick Blast Core farming are the lava-filled caves known as “blast roller caves” or “blaster chambers,” where multiple Blasters spawn in close proximity-sometimes up to five or more within a small area. These caves feature around eight to nine spawn points shared by Blasters, scorpions, and spiders, with a fast respawn timer of about 5 to 20 seconds, allowing for rapid farming by repeatedly triggering and defeating the Blasters.
Specifically, finding a small cave chamber near the entrance of the lava caves that consistently spawns several Blast Rollers or Blasters is ideal. Players often kill the Blasters, then leave and re-enter or restart the server to respawn them quickly. Daytime in Dry Valley is best for farming since Blasters are more common then, while nighttime spawns shift to wolves and skeletons.
To maximize efficiency, players use ranged weapons and kiting tactics to avoid the Blasters’ explosive attacks while collecting the dropped Blast Cores. Marking these productive caves on your map helps return for repeated farming sessions. These lava caves in Dry Valley remain the most reliable and fastest spots to gather large quantities of Blast Cores in LEGO Fortnite Odyssey.
